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Finding the Fourth Proportional to 160,484.60, 221,481.12 and 88,871.24

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Solution

The fourth proportional to 160,484.60, 221,481.12 and 88,871.24 is: 122,649.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,484.60 : 221,481.12 = 88,871.24 : x
  2. Step 2: Convert to fraction form
    160,484.60/221,481.12 = 88,871.24/x
  3. Step 3: Cross multiply
    160,484.60x = 221,481.12 × 88,871.24
  4. Step 4: Simplify right side
    160,484.60x = 19,683,301,770.99
  5. Step 5: Solve for x
    x = 19,683,301,770.99/160,484.60
  6. Step 6: Final answer
    x = 122,649.16

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.